CR16010H路由器

日志里有接口通断内容，但是设备上查不到接口，部分日志如下：

%Jul  2 12:34:45:773 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SHELL/5/SHELL_LOGOUT: ciomssview logged out from 223.92.1.143.

%Jul  2 12:34:45:753 2024 XJCHJ-CPE-CMNET-RT01-CR16010H NETCONF/6/SSH_XML_LOGOUT: User (ciomssview, 223.92.1.143, session ID=1) logged out.

%Jul  2 12:34:45:747 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SSHS/6/SSHS_DISCONNECT: SSH user ciomssview (IP: 223.92.1.143) disconnected from the server.

%Jul  2 12:34:45:747 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SSHS/6/SSHS_LOG: User ciomssview logged out from 223.92.1.143 port 55638.

%Jul  2 12:34:45:457 2024 XJCHJ-CPE-CMNET-RT01-CR16010H IFNET/4/LINK_UPDOWN: Line protocol state on the interface Route-Aggregation31.2444 changed to down.

%Jul  2 12:34:45:456 2024 XJCHJ-CPE-CMNET-RT01-CR16010H IFNET/3/PHY_UPDOWN: Physical state on the interface Route-Aggregation31.2444 changed to down.

%Jul  2 12:34:45:449 2024 XJCHJ-CPE-CMNET-RT01-CR16010H L3VPN/6/L3VPN_VRF_IFDOWN: The interface bound to the VPN instance went down.(VPN instance name=CM_CLDN_VIP36011_ZYSY-YWCPB-YWC,Interface name=Route-Aggregation31.2444,Interface status=active,VPN instance status=down)

%Jul  2 12:34:43:856 2024 XJCHJ-CPE-CMNET-RT01-CR16010H NETCONF/6/SSH_XML_LOGIN: User (ciomssview, 223.92.1.143, session ID=1) logged in.

%Jul  2 12:34:43:831 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SHELL/6/SHELL_CMD: -Line=vty0-IPAddr=223.92.1.143-User=ciomssview; Command is xml

%Jul  2 12:34:43:824 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SHELL/5/SHELL_LOGIN: ciomssview logged in from 223.92.1.143.

%Jul  2 12:34:43:504 2024 XJCHJ-CPE-CMNET-RT01-CR16010H SSHS/6/SSHS_CONNECT: SSH user ciomssview (IP: 223.92.1.143) connected to the server successfully.

如上所述，是什么原因会这样，日志有内容，31，2444，但是dis interface brief 里没这个接口，操作日志附近也全都看了没有删除记录，没有配置。